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Sachin Agarwal's Publications

Video Quality Assessment and Comparative Evaluation of Peer-to-Peer Video Streaming Systems
Citation key MBGAS-VQACEPVSS-08
Author Mavlankar, Aditya and Baccichet, Pierpaolo and Girod, Bernd and Agarwal, Sachin and Sing, Jatinder Pal
Title of Book IEEE International Conference on Multimedia and Expo (ICME _08)
Pages 645–648
Year 2008
ISBN 978-1-4244-2570-9
DOI http://dx.doi.org/10.1109/ICME.2008.4607517
Location Hannover, Germany
Month June
Abstract We design a test methodology to analyze in detail the video quality received at each peer in a peer-to-peer (P2P) video streaming system. The metrics that we employ at each peer include video PSNR, statistical analysis of frame-freeze events, the amount of time to wait before video playback starts, nature of the data-paths established to serve the peer, protocol overhead and duplicate data received. These metrics are estimated by analyzing the packet reception times at each peer and utilizing information about the original uncompressed video as well as the encoded video. We use this framework to compare the performance of three P2P video streaming systems by deploying them on our controlled traffic-shaped network test-bed. We can emulate the same network conditions and peer behavior for testing different systems and ensure that the experiments are repeatable. These measurements highlight the differences between systems based upon their underlying implementation, overlay architecture, and choice of protocols. This measurement study helps to gauge the performance of currently available P2P video streaming systems and points out desirable performance improvements.
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